Relaxing Effect of Novel Cosmetic Ingredient using Lactobacillus gasseri HDB1102 on Skin Problems Caused by Particulate Matter

Abstract

In this study, we developed Dermabiotics HDB1102 using <i>Lactobacillus gasseri</i> HDB1102 to relieve skin irritation caused by particulate matter (PM). <i>L. gasseri</i> HDB1102 was provided from cell bank and identified by 16S ribosomal RNA gene sequencing. Dermabiotics HDB1102 was manufactured by heating, centrifuging, and filtering culture medium of <i>L. gasseri</i> HDB1102. When 0-2.5%(v/v) Dermabiotics HDB1102 was treated, cytotoxicity on normal human epidermal keratinocytes (NHEKs) and human fibroblast was not observed by using MTT assay. The mRNA expression levels of cytochrome P450 1A1 (CYP1A1), interleukin (IL)-1β, and IL-8 on Dermabiotics HDB1102 treated cells decreased compared to PM-treated cells. Conversely, the mRNA expressions of aquaporin-3 (AQP-3), CD-44, and collagen type 1 (COL-1) on Dermabiotics HDB1102 treated cells were dose-dependent higher than those of non-treated cells. These results indicated that Dermabiotics HDB1102 have anti-inflammatory, moisturizing, and anti-wrinkle effects and could be used as a potential cosmetic ingredient to alleviate skin symptoms caused by PM.